[1/1] MedWorm: Malaria provides a medical RSS filtering service. Over 7000 RSS medical sources are combined and output via different filters. This feed contains the latest news and research in the Malaria category.

[1/40] Vasospasm in cerebral inflammation.

[2/40] Sierra Leone: Emergency Anti-Malaria Drive Reaches 2.5 Million People

[3/40] Hidden infection shortens life in birds

[4/40] Hidden infection shortens life

[5/40] [In Depth] Malaria may accelerate aging in birds

[6/40] [Perspective] Understanding artemisinin resistance

[7/40] [This Week in Science] Chronic malaria shortens telomeres

[8/40] [Report] K13-propeller mutations confer artemisinin resistance in Plasmodium falciparum clinical isolates

[9/40] [Report] Population transcriptomics of human malaria parasites reveals the mechanism of artemisinin resistance

[10/40] [Report] Hidden costs of infection: Chronic malaria accelerates telomere degradation and senescence in wild birds

[11/40] [Drug Resistance] Mechanisms propelling drug resistance

[12/40] RNAi validation of resistance genes and their interactions in the highly DDT-resistant 91-R strain of Drosophila melanogaster

[13/40] Heat‐precipitation allows the efficient purification of a functional plant‐derived malaria transmission‐blocking vaccine candidate fusion protein

[14/40] Cerebral malaria: susceptibility weighted MRI

[15/40] What the Gates Foundation Has Achieved, 15 Years On

[16/40] Sierra Leone emergency anti-malaria drive reaches 2.5 million people

[17/40] How malaria-spreading mosquitoes can tell you're home

[18/40] Paths to a malaria vaccine illuminated by parasite genomics

[19/40] [Chronic Infection] Chronic malaria shortens telomeres

[20/40] Spatial-Temporal Variation and Primary Ecological Drivers of Anopheles sinensis Human Biting Rates in Malaria Epidemic-Prone Regions of China

[21/40] Mapping hotspots of malaria transmission from pre-existing hydrology, geology and geomorphology data in the pre-elimination context of Zanzibar, United Republic of Tanzania

[22/40] Association between malaria exposure and Kaposi's sarcoma associated herpes virus seropositivity in Uganda

[23/40] Antibiotics in blood up chance mossies pass on malaria

[24/40] Effect of cotrimoxazole prophylaxis on malaria occurrence in HIV infected patients on antiretroviral therapy in sub‐Saharan Africa

[25/40] Colonization of malaria vectors under semi-field conditions as a strategy for maintaining genetic and phenotypic similarity with wild populations

[26/40] Remarkable diversity of intron-1 of the para voltage-gated sodium channel gene in an Anopheles gambiae / Anopheles coluzzii hybrid zone

[27/40] Estimation of changes in maternal mortality in a rural district of northern Tanzania during the last 50 years

[28/40] Phase 3 trial with the RTS,S/AS01 malaria vaccine shows protection against clinical and severe malaria in infants and children in Africa

[29/40] Sugar-sensitive neurone responses and sugar feeding preferences influence lifespan and biting behaviours of the Afrotropical malaria mosquito, Anopheles gambiae

[30/40] Laboratory experiments on stranding of Anopheles larvae under different shoreline environmental conditions

[31/40] Malpighian tubules are important determinants of Pseudomonas transstadial transmission and longtime persistence in Anopheles stephensi

[32/40] Africa: Malaria Hits Ghana Skipper, Tunisia and Cape Verde Draw, Zambia Loses Sinkala At CAN Day Two

[33/40] Antimalarial pyridones bind to the Qi site of bc1 [Biophysics and Computational Biology]

[34/40] Adaptive introgression in malaria vectors and ITNs [Evolution]

[35/40] Plant therapy overcomes malaria drug resistance [Evolution]

[36/40] Effects of fungal infection on feeding and survival of Anopheles gambiae (Diptera: Culicidae) on plant sugars

[37/40] Label-free Raman imaging of the macrophage response to the malaria pigment hemozoin

[38/40] Bed nets and vaccines: Some combinations may worsen malaria

[39/40] Genetics underpinning antimalarial drug resistance revealed

[40/40] Malaria resistance genetics revealed

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Malaria Information



Malaria is caused by a parasite called Plasmodium, which is transmitted via the bites of infected mosquitoes. In the human body, the parasites multiply in the liver, and then infect red blood cells.

Symptoms of malaria include fever, headache, and vomiting, and usually appear between 10 and 15 days after the mosquito bite. If not treated, malaria can quickly become life-threatening by disrupting the blood supply to vital organs. In many parts of the world, the parasites have developed resistance to a number of malaria medicines.

Key interventions to control malaria include: prompt and effective treatment with artemisinin-based combination therapies; use of insecticidal nets by people at risk; and indoor residual spraying with insecticide to control the vector mosquitoes.

Early diagnosis of malaria and its effective and timely treatment reduces morbidity and prevents death from malaria. Diagnostic tools - microscopy and rapid diagnostic tests - and medicines - artemisinin-based combination treatments - allow effective case management. Diagnostic tests and combination medicines of good quality need to be used correctly and strategically to reduce malaria morbidity and mortality and to reduce the risk of parasite resistance to medicines.

Half of the world's population is at risk of malaria, and an estimated 243 million cases led to estimated 863 000 deaths in 2008. The advent of long-lasting insecticidal nets and artemisinin-based combination therapy, plus a revival of support for indoor residual spraying of insecticide, presents a new opportunity for large-scale malaria control. The World malaria report 2009 describes the global distribution of cases and deaths, how WHO-recommended control strategies have been adopted and implemented in endemic countries, sources of funding for malaria control, and recent evidence that prevention and treatment can alleviate the burden of disease.

Malaria is a serious, sometimes fatal, disease spread by mosquitoes. It is common in many tropical countries and is caused by a parasite called Plasmodium.

There are four types of Plasmodium parasites: Plasmodium falciparum, vivax, malariae, and ovale and they are all carried by night-biting Anopheles mosquitoes.

Malaria is found in tropical regions of the world, including large areas of Africa, Asia, Central and South America, Haiti and the Dominican Republic, parts of the Middle and Far East and some Pacific OceanIslands, such as Papua New Guinea. Recent estimates show that as many as 300 to 500 million people become ill with falciparum malaria every year.

Malaria is widespread in over 100 countries and 3.2 billion people are believed to live in areas where malaria occurs.

Types of malaria vary between regions. For example falciparum is more common in Africa, Haiti, the Dominican Republic and Papua New Guinea. Vivax is the strain usually found in India, Pakistan, Bangladesh and Mexico and Central America. Both vivax and falciparum are present in South America and South East Asia. Ovale and malariae are uncommon.

In many African countries, particularly those in West Africa, malaria transmission is high all year-round, with many people infected. Adults born and brought up and still living in these regions may develop some immunity against malaria, although this immunity is not complete. Babies and children who have not yet developed any immunity can become seriously unwell and many babies and young children die from malaria in these areas of high malaria transmission. Visitors to these regions are at high risk of malaria, as they have no protective immunity.

In other regions of the world, such as South and South East Asia, the risk depends on factors like the weather and time of year. Short outbreaks of varying strengths tend to occur, especially during and after rainy seasons. This means malaria transmission in these areas is less intense, so people have poor immunity and all age groups are at risk of serious illness.

Malaria is a huge global health issue, with an estimated 300 to 500 million cases, and at least one million deaths every year. Ninety percent of malaria deaths occur in African countries near the equator, below the SaharaDesert. Most of those who die are young children.

Data from the Health Protection Agency Malaria Reference Laboratory

Each year approximately 1,750 people return to the UK with malaria. Most illness is due to infection with the potentially fatal falciparum strain. There are between five and 15 deaths due to malaria reported every year in the UK. In 2006 there were 1,758 reported malaria cases, with eight deaths. All the UK deaths were due to falciparum malaria caught in Africa.

Failing to take malaria prevention tablets or not taking the appropriate tablets is a key reason for catching malaria. Most UK travellers who catch malaria either do not take tablets or do not take the right tablets for the risk areas they visit.

The risk of dying from malaria depends on several factors, including:

Lack of awareness of malaria risks

Taking the wrong malaria prevention tablets or not realising tablets are needed

Mistaking malaria for another illness such as flu

Delaying seeing a doctor or starting treatment

Risk for Travellers

Any travellers visiting an area with malaria can catch the disease. This includes people originally from countries with malaria, who now live in malaria free regions such as the UK and return home to visit friends and relatives. If you are born and brought up in a country with malaria you may have some immunity to the disease, however, this immunity is not total and disappears quickly once you leave the risk country. If your children are born outside risk areas, they will not have any immunity to malaria.

The risk of malaria depends on:

Where you go

What you do

Where you stay

What time of year you travel

Whether you take the right malaria prevention tablets

How carefully you try to avoid mosquito bites


Malaria spreads to humans via the bite of an infected female Anopheles mosquito. She needs protein from blood in order for her eggs to grow. A diagram showing the life cycle of the malaria parasite can be seen on the Centers for Disease Control website.

Anopheles mosquitoes usually bite between dusk and dawn and are attracted to humans by our body heat, smell and the carbon dioxide we breathe out.

Signs and Symptoms

Malaria usually starts with fever, headache and muscle pain. Coughing and diarrhoea may also be present. Symptoms can rapidly progress to a high fever and severe muscle aches. Falciparum malaria can develop as quickly as eight days after exposure, or as long as several months (the latter is more common with vivax or ovale malaria).

With vivax or ovale malaria, the fever occurs in 48 hour cycles. You can initially feel cold, with shivering lasting 15 to 60 minutes, and then develop fever that lasts two to six hours, followed by extreme sweating.

Any type of malaria can be dangerous. However, malaria caused by falciparum can progress very rapidly and lead to severe medical problems. If prompt treatment is not given, it can be life threatening. The most serious complication of falciparum malaria occurs when malaria parasites enter the brain’s blood vessels. This can lead to coma and death. Other possible complications include kidney failure, fluid in the lungs, low blood sugar, increases in the body’s acid levels, anaemia, abnormal blood clotting and internal bleeding.

You should be aware of the signs and symptoms of malaria, especially fever, and must seek immediate medical attention if you experience any, either while you are away or for up to year after you return home.


Anyone with fever who has travelled to malaria risk areas must be tested urgently for malaria. Falciparum malaria is a medical emergency. If you are diagnosed with malaria, you should be admitted to hospital as you usually need specialist treatment.

Malaria tests are arranged by your doctor, specialist tropical diseases clinic or Accident and Emergency department. Your doctor will send a sample of your blood to a laboratory. Staff use microscopes to look for malaria parasites on glass slides which have been smeared with small amounts of blood (known as thick and thin blood films). The results should always be available on the same day. If you have any type of malaria treatment must be started straight away.

Malaria testing kits were given to travellers in the past that could be used to check for malaria during travel. However, they are often not used correctly and now are not recommended for travellers.

The kind of treatment your doctor will give you depends on which type of parasite has caused the malaria and whether or not it is resistant to any drugs. Generally, tablets or capsules are given, but if you are very ill you will need to have medicine given to you through your veins (this is often called a drip). Doctors should get advice about the best treatment from experts in infectious diseases or tropical medicine. There are also formal written treatment guidelines for doctors.

Travellers with signs of malaria who are in very remote areas during their trip can consider self-treatment with emergency standby medicines, after discussion with their nurse or doctor before the trip. These drugs are only meant for use in isolated regions when malaria symptoms are present and there is no access to immediate medical care. To make sure the correct treatment is given and confirm that the illness is malaria, you must still see a doctor as soon as possible. Standby treatment drugs are not a replacement for malaria prevention tablets. Before you travel, your doctor or specialist travel clinic will advise you if these drugs are right for you, but usually they are only prescribed in exceptional circumstances.


Preventing malaria involves several steps that are known as the A, B, C, and D of malaria prevention:

Awareness of the risk

Bite avoidance measures

Compliance with appropriate malaria prevention tablets

Diagnosis and treatment if symptoms develop

You should see your GP or Practice Nurse or go to a Travel Clinic for specific advice and appropriate preventative tablets for the country you are visiting before you travel.


Health Protection Agency

NaTHNaC Health Information Sheets. Insect bite avoidance.

NaTHNaC Health Information Sheets. Malaria chemoprophylaxis